There are high-variance (passionate) and low-variance (professional) people, and various gradations in between. HV tend to swing (in work performance) between 2 and 10, while LV tend to swing between 5 and 7. If you're HV, it means you learn quickly and can do great things but it's also a statistical near-guarantee that you'll be fired at least once in your career (don't worry; in the long term, it's not as big a deal as you think it is).
Game development on AAA titles is no different. Don't go into it thinking a high level of creative talent will launch you into a position of major influence. You may or may not have creative talent, but not only do you have to prove it first, but you have to get into a position where you can prove it-- and the latter is much harder, because the only people who can get on projects where creativity is visible are those who've already put a lot into the political bank.
Passionate people look at the garbage games typical of the industry and think, "I could do so much better!" And they're 100% correct. That also doesn't matter.
My advice (which is so cliche): forget about games, except as a hobby and possibly something to study. Play them and build independent games if you wish, but consider "game design" a non-option without one hell of a lift. Learn how to program. Programming opens up a lot of problems that are fun in their own right even if you're not working on games. A lot of programming problems are far more interesting than running 8-figure video games; trust me on this. Become a really great programmer. That will pay off regardless of whether one ever goes into the video game industry. And becoming a top-1% programmer (takes 10+ years, start now) will make entry into the game industry at a decent level (for a passionate person unwilling to pay dues for decades) possible.